Western Grove is a village located in the U.S. state of Arkansas. It is within Newton County included in the Harrison Micropolitan Statistical Area. It has a total area of 1.09 square miles at 36°6′3″N 92°57′28″W. The elevation is 1,073 feet above sea level. As of the 2010 census data, it had a total population of 384. The population density was 335.79/sq mi. Estimated per capita income in 2016 was $22,007. It has Zip code 72685.